Bless her heart, She was keeping up pretty well. It sure looks like a Niacin deficiency so all you can do is keep up with the 1ml dose. I'd also give her a lot of pool time to help build up her leg muscles running a long distance like she was doing may not be so good right now until her legs are...
It usually depends on how long the niacin deficiency has been going on as to how long it takes to recover. If it was left to where legs bowed before treartment there is always a chance not alot can be done or feet are severely pigeoned toed but there is always hope for legs to be strengthened No...